/Engine/Plugins/FX/Niagara/Source/NiagaraEditor/Public/ViewModels/HierarchyEditor/NiagaraHierarchyViewModelBase.h
template<class ChildClass> [TArray](API\Runtime\Core\Containers\TArray)< ChildClass * > GetChildrenOfType ( [TArray](API\Runtime\Core\Containers\TArray)< ChildClass * > & Out, bool bRecursive ) const